← MSHA mines + accidents
Iowa Grading 2
Metal/Non-metal · Surface · 1302316 · Active
Operator
- Controller (parent)
- Martin Marietta Materials Inc
- Operator
- Martin Marietta Materials, Inc.
- Commodity
- SandAndGravel
Location
- State
- IA · Polk Co.
- Coordinates
- 41.918333, -91.523611
Source
- Authoritative
- MSHA Mine Data Retrieval System
- Machine
- JSON-LD · Markdown